Excavating machine



L. KERCHER AND A. T. AND G. T. RONK. EXCAVATING MACHiNE.

APPLICATION FILED APR. 9,1920- 1 103,418. Patented Jan. 10, 1922.

ZSHttlS-SHEET I- Leroy fiercher fLTROfi/i I I INVENTOR ATTORNEY L.KERCHER AND A. T. AND G. T. RONK.

EXCAVATING MACHINE.

APPLICATION FILED APR. 9, 1920. 1,403,41

Lero [I er ch67 A.T.' 072k a INVENTOR ATTORNEY WITNESSES Patented Jan.10, 1922. 1

L. KERCHER AND A. T. AND G. T. RONK.

EXCAVATING MACHINE.

APPLICATION FILED APR. 9. 1920.

Patented "Jan. 10, 1922..

I SHH:TSSHEET 3.

INVENTOR A TRonZi -6.T'Ro7? h I Leroy Karo/2e?" ATTORNEY WITNESSE S L.KERCHER AND A. T. AND G. T. RONK.

EXCAVATING MACHINE.

APPLICATION FILED APR. 9, 1920.

Patented Jan. 10, 1922.

TSHtEI'S-SHEET 4.

INVENTOR Leroy Kercher AJTRonh (2.7720205 ATI'ORNEY L. KERCHER AND A. T.AND G. T. RONK.

EXCAVATING MACHINE.

APPLICATION FILED APR. 9, I920.

1,403,418. Patented Jan. 10, 1922.

7 SHLt I S-SHEET 5.

L eroy lierch er A-TRonh airrzzonh g k BY ATTORNEY WITNESSES L. KERCHERAND A. T. AND G. T. RONK. EXCAVATING MACHINE.

APPLICATION FILED APR. 9, 1920.

1,408,418, Patented Jan. 10, 1922.

7 SHttfS-SHEET 6.

' l-w P Leroy fl erc her 11.1 3071 6 INVENTOR WITNESS 5 ATTORNEY I..KERCHER AND A. T. AND G. T. RONK. EXCAVATING MACHINE.

I I APPLICATION FILED APR- 9, I920. 1,403,418.

ISHEEIS-SHEET 7.

Patented Jan. 10, 1922.

a0 a I I Lero Kara/1e) A; 77%0 5 6 2? P0775 INVENTOR AITORN Y WITNESS:

UNITED STATES PATENT. OFFICE.

LEROY IKERCHER, OF NEAR ROANN, AND ALBERT T. RONK, OF WARSAW, INDIANA,

AND GEORGE T. RON K, OF LEON, IOWA, ASSIGNORS TO THE SPEEDER MACHINERYCORPORATION, OF LEON, IOWA, A CORPORATION OF IOWA.

nxoava'rmo MACHINE.

Specification of Letters Patent. P t t d J 10, 1922 Application filedApril 9, 1920. Serial No. 372,524.

To all whom it may concern:

- Be it known that we, LEROY KERGHER, of near Roann, in the county ofMiami and State of Indiana, ALBERT T. Rob n, of Warsaw, in the county ofKosciusko and State of Indiana, and JEORGE T. Robin, of Leon, in thecounty of Decatur and State of Iowa, all citizens of the United States,have invented new and useful Improvements in Excavating Machines, ofwhich the following is a specification.

This invention relates to improvements in excavating machines of thetype which, in addition to digging or excavating, will haul, hoist anddump the excavated material by means of booms and cables.

Another object of the invention is the provision of an excavatingmachine, which will convey the material from a remote point from thecentral machine or operating mechanism by the use of a scoop or slip,operated by a cable or cables, the material being conveyed from anydirection toward the central machine or operating mechanism.

Another object is the provision of means for automatically guiding thescoop and for automatically raising and lowering the same.

Another object is the provision of means for preventing fouling of thehauling cable with either the lifting boom or scoop, during the dumpingoperation.

Another object is the provision of means for hoisting and dumping theexcavated material when conveyed to the central machine or operatingmechanism, by hoisting the material in the scoop and dumping the same inany direction, provision being made for dumping the scoop accuratelyinto a small space, such as wagon box or body when desired.

A further object is the provision of means for returning the scoop tothe place of loading by means of a return cable connected to the motoror other prime mover on machine and by the same means, move and guidethe scoop over a widely distributed area as required in the building oflevees or grading or for dumping in wagons, cars or other containers.

Other objects and advantages of the invention will appear as thefollowing description is read in connection with the accompanyingdrawings.

In the drawings Figure 1 is a side elevation of an excavating machineembodying the present invention.

Figure 2 is a plan view of the same.

Figure 3 is a vertical longitudinal sectional View.

Figure 4 is a plan view with the rotatable frame removed.

Figure 5 is a Sectional view on the line 5-5 of Figure 4.

Figure 6 is an enlarged detail elevation of the upper end of theboom'standard.

Figure 7 is a fragmentary side elevation showing the position of theloading cage and sheave when the scoop is positioned beyond the end ofthe boom.

Figure 8 is an enlarged sectional view on the line 8-8 of Figure 1.

Figure 9 is an enlarged detail sectional View of the compensating drum.

Figure 10 is a detail of the anchor looking at right angles to Figure 1.

Figure 11 is a detail view of the automatic clutch for the main drum.

Figure 12 is a detail section on the line 1212 of Figure 7.

Figure 13 is a detail plan view of the traveling sheave.

Figure 14 is a side elevation of the scoop.

Figure 15 is a view at right angles to Figure 14. i

Referring to the drawings in detail, the reference character 10indicates the main frame, which includes longitudinalqparallel members11 and side members'12, allof the said members being connected at oneend by a bar 13, while the forward end of the members 10 are connectedto the members 11, the latter being connected by a cross piece 14. Thisframe will be hereinafter referred to as the stationary frame and ismounted upon a rear axle 15, which is supported by wheels 16, the latterconstituting the driving wheels of the machine. The frame 10' is furthersupported by a front axle 17, which carries wheels 18, the said wheelsbeing connected to the front axle by a knuckle 19, so as to providesteering wheels for the machine. The knuckles 19 are connected by a rod20, so as to operate in unison, the operation being effected through asteering rod 21, which is disposed longitudinally of the ing rod-21,has. secured upon its inner end a toothed se out-'23, which is operatedby a steering .w eel hereinafter referred to for:

the' u se of guiding the machine. Tire n i in frame 10 has mountedthereon a stationary track 24,,the, latter supporting a rotatable frame25, to thebottom of which is secured rollers 26, which ride over thetrack 24. Mounted'in bearings or brackets 27 and 28, is a sleeve 29 andpassingthrough' thissleeve is a shaft 30, which has secured upon itslower end abeveled. pmion 31, w

being secured upon a transversely arranged drive shaft 33 mountedinbearin in the main frame 10. Secured upon eac end of the shaft 33', arepulleys 34 over whichpasses a drive. chain 35, for the operation of asprocket 36 secured u n the rear axle 15 of the main frame. heupperendof the shaft has secured thereon abeveled pinion 37, the latter engaginga similar pinion 38, which is secured upon a shaft 39, mounted inbearings transversely" thereof andcarried by the rotatable frame 25. Theshaft.

, 39 has secured near its outer end asprocket wheel 40, which is drivenby a chain 41 operated b a motor or'other prime mover 42 carried y therotatable frame 25. The chain 41 asses over a sprocket 43, which iscontrolle by a clutch 44, by means of which the movement of the machinemay be controlled. Mounted upon the. sleeve'29, is a gear-45, the latterbeing provided withbeveled teeth 46 which enga the teeth of the segment23, which are 1i ewise beveled. The gear is further provided with spurteeth 47, which engage a pinion 48mounted upon a steerin post 49, whichis controlled by a, hand whee 50. This arran ement ermits the steeringof the front w eels of spective of the position of the rotatable frame.I

Mounted upon the main. or stationary frame 10, is a ring gear 51,, whichengages a pinion 52, mounted upon the lower end of a short verticallydisposed'shaft 53. v The upper end of this shaft 53 carries a beveledworm gear 54, which engages a mounted upon one end of a longitudinallydisposed shaft 56. Keyed veled and out of engagement with a beveled gear59 mounted upon the shaft 39. This provides for the rotation of theframe 25 through the medium of the motor or' rime mover 42," thedirection of rotation eing controlled by the clutch 58, as. will bereadily understood.

on'the sha maglbe substituted.

ich engages a beveled gear -32,,the latter the machine, irre-' inion 55uggn this last' in the main drum 62which is adapted to be l ed upon theshaft by means of a clutch '63. This shaft is rotated. by means of achain 64, which passes over asprocket 65 mounted u on the shaft. 39and-a sprocket 66 so secured upon the rotatable frame 25, are twovertically disposed spaced standards 67, WhlCh are connected together bybars or rods 68. These standards provide bearln for a'shaft 69, uponwhich is pivotal y 61. Any other suitable gearing mounted booms 70 and71. The first men ,tioned boom may be termed a stationary bo om, but maybe adjusted to a desired height through a medium of a chain 72, one en.of which is secured to a hook 73 carried at the upper end of thestandards 67.

The lower or lifting boom 71 is formed in sections, the adjacent ends ofthese sec! tionsbeing pivoted together'as indicated at 74, while theoutermost section 75 of this boom carries a ca e 76 which depends fromthe under side-o the boom. This cage is provided withs aced verticalrollers'77 and a horizontal ro ler 78, these rollers being adaptedforfenga ement w ith a sheave 79 'which is. removab y positioned withinthe ca e between the rollers and is'provided with s1 e flanges 7 9'which enga e the side edges of the ca e so as to limit t secured to ascoop 86, which is sup orted by a bail 87 from the section 75 of t elifting ,boom, the said bail being provided with a roller88 whichtravels upon the upper edge of the lifting boom so as to permit of aninner and outer movement of the scoop along the boom.

The scoop 86 is also. capable of movement be ondthe outer end of theboom and for this purpose there is connected'to the scoop.

a cable 89, which secured to an anc or 91 located at a point remote fromthe end of the boom. The cable asses around a sheave 90,

89 passes upward around a sheave 92 and. thence downward through asheave 93 around thereverse drum 97.

Extending transversely across the upper ends of the standards 67, is atrack 94 and .mounted upon this track andcapable of .movementlongitudinally of the same is a carriage 95. This carriage has secured Ie inward movement of t e sheave. Passing over this sheave 1s a cable 80,one end of WhlCh is wound tions of the machine this sheave 92 isinclined either toward the right or'left as shown in Figure 6 of thedrawings and the cable 89 passes from the reverse drum 97,

which is also mounted on the standards 67,-

to one endof the track 94 and held at this end of the track by lockingthe sheave 92 against accidental movement, so that it will not be in theline of operation of either the booms, or the incoming scoop. suitablemeans may be employed'for holding the sheave in position. In the eventof the boom and frame being swung in an opposite direction, the carriage95 1s run over to the opposite side of the track and locked in positionthere. The cable 89, in operation pulls the scoop 86 rearward toward theanchor and is thus always guided outward from the machine in theopposite direction fro which the boom is swingin In some classes ofwork, it is desirable to use a dragline tramway cable, such as isindicated at 99 by the dotted lines in Figure 1. When this is done, thecable will pass through a suitable sheave (not shown) beyond the anchor91 and upward over the sheave 92, which, for this purpose is raised to.the position shown by the dotted lines in Figure 1, the carriage 95being free to travel over thetrack 98, to allow the tramway-cable towave to and fro with the swinging of the boom 70, which boom carries asheave 100 having a swiveled connection with the said boom, toguide thecables. The opposite end of the cable may be anchored at any pointbeyond the end of the machine.

The other section 101 of the compensating drum 81, has connected theretoone end of a cable 102, the said cable being wound upon the drum in areverse direction from the cable 80 and passing outwardover the boom 70and through a sheave 103 carried at the extremity of the boom. The cable102 then passes downwardly through 'a sheave 104, which is secured tothe outer" section of the carrying boom and upward, where it is securedas indicated at 105.

As before stated, the lower or carrying boom is made in two sections.The outer section 75 of which is capable of free lateral movement forthe reception of the bail 87 of the scoop 86, for elevation, the saidboom being raised and lowered by the cable 102. The track 75 on thecarrying boom, as before stated supports a locking. cage 76 and upon therearward movement of the scoop 86, due to the operation of the reversedrum, the sheave 79 travels to the outer end of the boom.

Upon the forward movement of the scoop the sheave 79 travels outwardbeneath the the spring 111.

outer end of the boom, bein removed from igure 7 of the the cage 76 asillustrated in drawings. Upon its return movement, the sheave 9 entersthe cage between the-rollers and-its inward movement is arrested by theit space 79'. At this point the sheave strikes a lever 109 which ispivotally mounted upon the boom and is provided with an eye throughwhich the upper flight of the cable 80 passes, the pivotal mountm of thelever 109 being indicatedat 110. e upper end of this lever is connectedto the boom by means of a spring 111 an' eye being provided for. thisurpose, as shown in Figure .l of

the drawings. Also pivotally connected to v the lever 109, is a rod 112,the inner end of this rod being connected to a dog 113, which isnormally engaged with thenotches in the end of the flange 83, under theinfluence of When the cage 77 thus traveling inward strikes the lever109, it disengages the dog 113 from the disk 83. When disengaged, theaction of the cage will, after it has come to rest, cause thecompensating drum to spin,-

as the free end of the cable 80 is wound around. the section 82 of thesaid drum. This spinning and unwinding of the cable 80, winds up thecable 102 which is connected to the other section of the compensatingdrum and raises the carrying booms 71,75. When the carrying boom hasreached its maximum height, the inner end of the said boom strikes alever 114, which is mounted upon the boom 70 and automatically throwsout the clutch 60 of the main drum 62. The drum is provided with abrake'115, so that the booms may be held,

in this position until the rotatable frame swings-to the desiredposition through the action of a gearing previously described. Therelease of the brake 115 will permit the carrying boom to drop bygravity. This unwinds the cables 102 and winds the cable 80 for the nextoperation. When the carrying boom has lowered sufliciently to drop thescoop 86, the cage 77 travels outward by gravity or by action of thecable 89- through the reverse drum. This outward movement of the cagepermits the spring 111 to move the dog 113 into engagement with thenotches in the compensating drum so as to stop its revolving motion andto hold the carrying drum at proper height for the next operation of thescoop 86.

Pivotally mounted upon the outer end of the carrying boom as indicatedat 115*, is

a downwardly extending lever 116, the purpose of which is to guide thebail of the scoop upon the outer end of the boom in the event of thelatter not being accurately adjusted.

A tripping lever 117 is pivotally mounted as indicated at 116 on theouter end of the mover 42.

carrying boom, and has connected thereto one end of a cable 119, theopposite end of which extends to within convenient reach of the operatorof the machine. This trip operates the latch 120 mounted upon the scoop,so that the scoop ma be dumped by operating the cable 119. e latch 120is pivotally mounted as indicated at the rear end of the scoop upon oneend of a rock shaft '120, the opposite end of this rock shaft beingpivoted to a rod 120 whose upper end is pivoted to a spring controlledboom 120, the latter being mounted upon the bail 87 within a frame 120.The outer end of this frame carries a roller 120", so that when the boomis tilted it will be engaged by this roller and contact prevented withthe boom 120. The free end of .the trip in lever 117 however, is locatedbeneat t e boom 120 so that a tool upon the cable 119 will operate thelatch and dump the scoop, while the frame 120 will prevent accidentaldumping.

A seat 121 is mounted upon a small platform carried by the rotatableframe and extending to within convenient reach .of theoccupant of theseat is a lever 1 21 for controlling the o eration of the engine orprime uitable controlling levers may also extend from the clutchesforthe drums and the brakes for the said drums.

It is believed that when the fore oing description is read in connectionwith the accompanying drawings, the construction, operation andadvantages of the invention will be apparent. The right is reserved tomake such changes in the form, proportions and minor details ofconstruction as roperly fall within the scope of the appended claims.

Having described the invention what is claimed is 1. An excavatingmachine embodying a wheel supported base, a frame mounted for rotationthereon, a lifting boom pivotally mounted upon the rotatable frame, asectional carrying boom, means for pivotally connecting the sections topermit of lateral swinging movement of the outer section, means forswinging the outer section inde pendently, a bail supported scoopcarried by the carrying boom, operating mechanism for moving the scooplongitudinally of and beyond the end of the last mentioned boom andmeans connecting the lifting boom and the carrying boom for raising thelatter.

2. An excavating machine embodying a wheel sup orted base, a framemounted for rotation tliereon, a lifting boom pivotally mounted upon therotatable frame, a carrying boom also pivotall mounted upon sald' frame,a bail supporte scoop carried by the carrying boom, operating mechanismfor movin the scoop longitudinally thereof and beyon the end of the lastmentioned boom,

matical a pivoted bail guiding lever located at the outer end of thecarrying boom'and means connecting the lifting boom with the carryingboom for raising the latter.

3. An excavating machine embodying a wheel sup orted base a framemounted for rotation t ereon, a mounted upon the rotatable'frame, acarryingboom also pivotall mounted upon said frame, a bail supportescoop carried by the carrying' boom, means including anautoyoperatedreleasemecha'nismformoving the scoop longitudinally of andbeyond the end of the last mentioned boom, and means connectin the-lifting boom with the carrying boom or raising the latter.

4. An excavating machine embodying a wheel supported base, a framemounted for rotation thereon, a lifting boom pivotally mounted upon theframe, a carrying boom also pivotall mounted upon said frame beneath theli ting boom, a scoop carried by the carrying boom, means including aplurality of drum operated cables for operating the scoop, means forlifting the carrying boom, automatically operated means controlled bythe lifting boom for controlling the operation of one of the scoopcables, and operatmg mechanism carried by the frame.

5. An excavating machine embodying a wheel supported base, a framemounted for rotation'thereon, a lifting boom pivotally mounted u onthe-frame,.a carryingboom also pivota ly mounted upon said frame, 'abail supported scoop carried by the carrying boom, operating mechanismfor moving the scoo Y longitudinally of and beyond the end of t e lastmentioned boom, said mechanism includin an outhaul cable connected toone end of t e scoop, an inhaul cable connected to the opposite end ofsaid scoop and a'sheave carried by the inhaul cable and included in theinhaul cable connected means and means connecting the lifting boom andcarrying boom for raising thelatter.

a 6. An excavating machine embodying a wheel supported base, a framemounted for rotation thereon, a lifting boom pivotally mounted upon therotatable frame, a carrying boom also pivotally mounted upon said frame,a bail supported scoop carried by the carrying boom, and operatingmechanism for moving the scoop longitudinally thereof and beyond the endof the last mentioned boom, said mechanism includin an outhaul cableconnected to one end of t e scoop, an inhaul cable connected to theopposite end-of said scoop, a sheave carried b the inhaul cable andserving to connect t e latter with the and means connecting the liftingboom and.

carrying boom for raising the latter.

7. An excavating machine .embodying a lifting boom pivotally 1.4os,41s

wheel sup orted base, a frame mounted for rotation t ereon, a liftingboom pivotally mounted upon the rotatable frame, a carrying boom alsopivotall mounted upon said frame, a bail supported scoop carried by thecarrying boom, operating mechanism for movin the scoop longitudinallythereof and beyond the end of the last mentioned boom, sald mechanismincluding an outhaul cable connected to one end of the scoop, an inhaulcable connected to the opposite end of said scoop, a sheave carried bythe inhaul cable and serving to connect the latter with the scoop, aspring actuated latch, means operated by the sheave for controlling theoperation of the latch and means connecting the lifting boom andcarrying boom for raising the latter.

8. An excavating machine embodying a wheel supported base, a framemounted for rotation thereon, a lifting boom pivotally mounted upon therotatable frame, a carrying boom also pivotall mounted upon said frame,a bail supported scoop carried by the carrying boom, operating mechanismfor moving the scoop longitudinally thereof and beyon the end of thelast mentioned boom, a bail guiding lever located at the outer end ofthe carrying boom and means connecting the lifting boom with thecarrying boom for raising the latter.

excavating machine embodying a wheel supported base, a frame mounted forrotation thereon, a lifting boom mounted upon the rotatable frame, acarrying boom pivotally mounted upon said frame, a bail supported scoopcarried by the said boom, operatmg mechanism. for moving the scoop alongand beyond the end of the last mentioned boom, a bail guide arm locatedat the outer end of the-carrying boom and means connecting the liftingboom with the carry ing boom for raising the latter.

10. An excavating machine embodying a wheel supported base, a framemounted for rotation thereon, a lifting boom mounted upon the rotatableframe, a carrying boom pivotally mounted upon said frame, a bail guidearm located at the outer end of the carrying boom, a bail supportedscoop carried by the said boom, operating means for moving the scooplongitudinally of and beyond the end of the guide arm and boom, meansfor dumping the scoop and means for connecting the lifting boom and thecarrying boom for raising the latter.

11. An excavating machine embodying a wheel supported base, a framemounted for rotation thereon, a lifting boom mounted on the rotatableframe, a carrying boom piv otallv mounted upon said frame, means carriedby the lifting boom for raising and lowering the carrying boom, a guidearm located at the outer end of said carrying boom, a bail supportedscoop carried by the carrying boom, operating mechanism for moving thescoop longitudinally of and beyond the outer end of the guide arm, saidmechanism including an outhaul cable connected with the outer end ofsaid scoop and means for returning the scoop to a position whereby theoperating bail will be engaged by the guide arm of the carrying boom,the lastmentioned mechanism includingan inhaul cable, means foroperating said cables and means for dumping the scoop.

In testimony whereof we afiix our signatures.

LEROY KERG'HER. ALBERT T. RONK. GEORGE T. RONK.

